Function runAb

test/pummel/test-keep-alive.js:50–93

(opts, callback)

const runAb = (opts, callback) => {
  const args = [
    '-c', opts.concurrent || 50,
    '-t', opts.threads || 2,
    '-d', opts.duration || '5s',
  ];

  if (!opts.keepalive) {
    args.push('-H');
    args.push('Connection: close');
  }

  args.push(url.format({ hostname: '127.0.0.1',
                         port: opts.port, protocol: 'http' }));

  const child = child_process.spawn('wrk', args);
  child.stderr.pipe(process.stderr);
  child.stdout.setEncoding('utf8');

  let stdout;

  child.stdout.on('data', (data) => stdout += data);

  child.on('close', (code, signal) => {
    if (code) {
      console.error(code, signal);
      process.exit(code);
      return;
    }

    let matches = /Requests\/sec:\s*(\d+)\./i.exec(stdout);
    const reqSec = parseInt(matches[1]);

    matches = /Keep-Alive requests:\s*(\d+)/i.exec(stdout);
    let keepAliveRequests;
    if (matches) {
      keepAliveRequests = parseInt(matches[1]);
    } else {
      keepAliveRequests = 0;
    }

    callback(reqSec, keepAliveRequests);
  });
};

server.listen(0, () => {
  const port = server.address().port;